Mpm
abbr. meters per minute 米/分
??? 情景例句
Band Six.
六級。
I can see the brown wall of dust coming toward us with the wind.
風卷起褐色的墻壁似的滾滾黃沙，向這里襲來。
Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land.
100年前，我們只知道海洋是二維平面形的，以及靠近陸地淺水區的深淺不一能給航行帶來危險。